On Jan 9, 2012, at 3:37 PM, Marvin Humphrey wrote: > Lucy doesn't support empty term queries. You will have to achieve this using > an actual string, either by storing a sentinel value like "EMPTY" in the > 'title' field itself, or by e.g. storing a "1" or "0" value in an auxilliary > field such as 'has_title'.
For the sake of simplicity, I ultimately adopted the sentinel-value solution, storing a project-namespacey value that's unlikely to ever appear within real data. I adapted Peter's suggested regex to detect and respond to requests for "NULL" appropriately. Works just fine, and generates no false positives. -- Jason McIntosh http://jmac.org • [email protected] • @JmacDotOrg
